Accumulation of the Hf-178m2 isomeric nuclei through spallation with internediate-energy protons of tantalum and rhenium targets.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F02%3A49020173" target="_blank" >RIV/61389005:_____/02:49020173 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Accumulation of the Hf-178m2 isomeric nuclei through spallation with internediate-energy protons of tantalum and rhenium targets.

Original language description

The productivity of the spallation reactionc at proton energies of 100-660 MeV for accumulation of the radioactive isotopes and isomers has been studied experimentally. Spectra of Ta and Re targets actived at Dubna synchrocyclotron were measured using the methods of radiochemistry and gamma spectroscopy, Many radioactive products of the spallation and fission reactions are indentified, and their yields are compared with the LAHET code simulations. Cross-sections cm and isomer-to ground state rations sigma(m)/sigma(g) are deduced for nuclear isomers, in particular, for high-spin isomers, as Hf-178m2, Hf-179m2 and Lu-177. Spin distributions for the spallation-residue nuclei are estimated to understand the sigma(m)/sigma(g), ratios. Possibilities to optimize the methods for the long-lived isomers production are discussed, and it would be a necessary step on theway to accululate Such exotic radionuclides in milligram amout under reasonable cost and radiation safety conditions.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BG - Nuclear, atomic and molecular physics, accelerators

OECD FORD branch

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Project

<a href="/en/project/KSK2067107" target="_blank" >KSK2067107: Applied physics as a basis of technical sciences</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2002

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Nuclear Instruments and Methods in Physics Research. Section A-Accelerators Spectrometers Detectors and Associated Equipment

ISSN

0168-9002

e-ISSN

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Volume of the periodical

489

Issue of the periodical within the volume

1/3

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

21

Pages from-to

448-468

UT code for WoS article

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EID of the result in the Scopus database

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